TPEP anti-corrosion steel pipe manufacturers have strict requirements to ensure quality

Anti-corrosion steel pipe manufacturers have strict requirements to ensure quality
Cangzhou Tianyuan Anti-corrosion Engineering Co., Ltd. hot-selling hotline QQ:
The outer wall of the anti-corrosion steel pipe adopts hot-fusion winding process with bottom layer of epoxy resin, middle layer of adhesive and outer layer of polyethylene. A three-layer anti-corrosion layer is formed. The inner wall adopts thermal spraying epoxy powder anti-corrosion method. The powder is heated and sintered at high temperature and then evenly coated on the surface of the pipe body, which greatly improves the coating adhesion and coating thickness. Construction The pipe body should be placed on a good foundation, and expansion joints should be set every ~m along the pipeline. The anti-seepage structure should be appropriately thickened at the joint with the pipeline, and the outside of the pipe should be backfilled with ~m thick impermeable soil material to prevent the Changes and uneven settlement of the foundation lead to defects such as fractures or cracks in the pipe body and concentrated seepage between the pipe body and the dam body.
Anti-corrosion steel pipe inspection:
) Appearance quality: Visual inspection shows that the coating surface should be flat and smooth, and there should be no obvious bleeding.
)Thickness detection: Use a coating thickness gauge to measure the total thickness at the same points on the upper, lower, left and right
locations of the repair areas on both sides of the welding joint. The minimum value shall not be less than the pipe body coating. the minimum thickness. If there is a small area that is not thick enough, it can be roughened and repaired with two-component epoxy paint. If the area where the thickness is insufficient exceeds the surface area of the steel pipe repair area, it should be re-sprayed. The thickness of the bottom layer and surface layer of the patching coating should be inspected once per shift. If the thickness of the bottom layer does not meet the thickness requirements, a random inspection will be carried out at one place. If the thickness of the bottom layer meets the minimum requirements, the spraying thickness of the class will be qualified. If the thickness of the bottom layer does not meet the minimum requirements, the coating thickness of the class will be qualified. If the thickness of the bottom layer does not meet the minimum requirements If the requirements are met, the repair work of this class is unqualified and will be dealt with according to regulations or negotiated with the owner.
) Leak detection: Use an electric spark leak detector to detect the coating in the patching area with a DC voltage of /m. If there are leaks, they should be dealt with as required.